Fusible-link heater.



E. T. COPELAND.

FUSIBLE LINK HEATER.

APPLICATION FILED JULY 29. 1915.

LM'YAL Patented Jan. 11, 1916.

5] nuewfoz tached from the member 2, by

EDWIN TURNER COPELAND, OF NEW YORK, N. Y.

FUSIBLE-LINK HEATER Specification of Letters Patent.

Patented Jan. 3131, 19116.

Application filed July 29, 1915. Serial No. 42,509.

To all whom it may concern:

Be it known that I, EDWIN TURNER Cors- LAND, a citizen of the UnitedStates, and residentof the city of New York, in the county of Kings andState of New York, have invented a new and useful ImprovementinFusible-Link Heaters, of which the following is a specification.

The invention consists of an electrical heating unit applicable to anyfusible link by means of suitable binding clasps, and also of thevarious details of construction and the combination of the severalparts, as will be more fully described and pointed out in the claims.

Reference is to be had to the accompanying drawings in which Figure 1 isa side elevation of a fusible link and heater and Fig. 2.is a frontelevation of Fig. 1. Fig. 3 is a top plan of Fig. 2.

The common type of fusible link consists of two members'solderedtogether with low fusing solder, and in my improved fusible link thenumeral 1 indicates onesuchlmemher; my second member 2" dilfers from themember 1, in that it is provided with binding clasps 3, to form anattachment for an electric heating unit. The members 1 and 2 aresoldered together with low fusing solder 4, in the usual manner, andwithin tlie binding clasps 3 is removably held an electrical heatingunit 5, which may be de fusible link by withdrawing it from the bindingclas s 3. This heating unit 5may bepreferab y brought into effectiveheat conductive contact with the means of plastic metallic amalgam oralloy 6, such as is sometimes used in connecting switch board bus barsto prevent corrosion and a drop in voltage. The heating element 5, isshown provided with an electric wire connection 7, and the otherterminal of the electric circuit through the heating unit 5, may begrounded through the fusible link in the usual manner. The fusible linkis provided with holes 8, to connect it to a sprinkler head or.

other device in the usual manner.

Reference is made to my Patent No. 1,029,277 dated June 11, 1912, inwhich a form of fusible link is shown having a heat ing unit integralwith the link. This patent shows a link combined with head, but I do notlimit the present invention to fusible links for sprinkler heads, nor doI limit myself to the exact construction shown in the drawings.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. The combination of a fusible link conasprinkler ,7

sisting of two separable members soldered together and a removableelectrical heating unit attached-to one of the members and independentof the other member.

2. In a fusible link device, the combination of a fusible linkconsisting of two separable members soldered together, an independentelectrical heating unit and means for attaching the electrical heatingunit to one of the members of the fusible link.

3. The combinationof a fusible link consisting of two separable memberssoldered together, one of the members being provided with bindingclasps, and a heating unit held by the binding clasps.

4. The combination of a fusible link consisting of two separable memberssoldered together, one of the members being provided with bindingclasps, a heating unit held by the binding clasps and an amalgam heatconductor between the heating unit and the member provided with thebinding clasps.

EDWIN TURNER COPELAND. Witnesses I WILLIAM S. SINoLAni, H. O. Lancer.

